US president announces measure in response to situation in Iran, which is facing anti-government protestsBusiness live – latest updatesUS politics – live updatesChina has threatened to retaliate against Donald Trump after the US president said he would impose 25% tariffs on countries that trade with Iran as a way of punishing Tehran for its brutal crackdown on the biggest anti-regime protests in years.Liu Pengyu, the spokesperson for the Chinese embassy in Washington, said Beijing would “take all necessary measures to safeguard its legitimate rights and interests” after Trump threatened to ramp up the global trade war. Continue reading... ...read more read less